SAP SERVICES • E-INVOICE INTEGRATION
eInvoice SAP Integration for GST India Compliance
A modern SAP e-Invoicing integration page designed around IRN generation, eWay Bill actions, GSTN/IRP connectivity, invoice print updates and compliant digital process execution.
ABOUT THE PROJECT
Connecting SAP Billing with India’s e-Invoice Compliance Flow
The GST Council of India introduced electronic invoicing in a phased manner for B2B invoice reporting to the Invoice Registration Portal. The project objective is to enable SAP-created invoices to move through a governed digital process for IRN generation, validation, eWay Bill processing and invoice output enrichment.
- SAP invoice submission to government e-Invoice systems
- IRN, QR code and eWay Bill information captured back into SAP
- Custom cockpit for controlled submission and cancellation actions
- Structured master data and transaction mapping for India eInvoice standards
E-INVOICE INTEGRATION TOUCH POINTS
Core SAP Extensions Required for the Integration
The integration is built around custom SAP tables, a controlled eInvoice cockpit, standard action processes and storage of government-generated information for future invoice printout and compliance reference.
Master Data Mapping
Custom tables for India eInvoice standard master data mapping and validation readiness.
eInvoice Cockpit
Custom cockpit for submitting SAP-created invoices to the government integration layer.
Four Standard Actions
Generate IRN, Cancel IRN, Generate eWay Bill based on IRN, and Cancel eWay Bill.
Invoice Output Update
Store generated IRN, QR code and eWay Bill data for invoice printout and audit visibility.
ACTION & DATA LAYER
A Controlled SAP Cockpit for Government e-Invoice Actions
The page design converts the old article into a cleaner enterprise explanation: SAP invoice data is prepared, converted, submitted, validated and stored through a controlled action layer.
- Generate IRN from SAP invoice data
- Cancel IRN when the invoice action requires reversal
- Generate eWay Bill based on the generated IRN number
- Cancel eWay Bill when required through cockpit action
- Store IRN, QR code and eWay Bill information in custom tables
- Update invoice output with government-generated identifiers
STANDARD PROCESS FLOW
From Invoice Creation to Signed QR Code Invoice
The standard flow starts with invoice creation and moves through custom eInvoice preparation, standardization, tax API consumption, IRN generation, IRP/GSTN validation and final signed QR code invoice output.
- Creation of invoice in SAP
- Custom eInvoice preparation and standardization
- Consuming ClearTax API for government-side communication
- Generation and validation of IRN through IRP/GSTN
- Issue signed QR code and invoice
SOLUTION PROPOSED
SAP to IRP Integration Through a Structured Compliance Layer
SAP Billing & Cockpit
- SAP invoice data read into custom eInvoice cockpit
- ABAP custom program controls available actions
- Data prepared for JSON conversion and API submission
- Government response mapped back into SAP
IRP / GSTN Integration
- IRP validates request data and generates IRN
- ClearTax sends data to the IRP portal
- JSON schema converted back into ABAP schema data
- Integration layer handles response exchange
Invoice Output & Compliance
- IRN number updated in invoice
- QR code details available for printout
- eWay Bill number stored and referenced
DETAILED WORKFLOW
Supplier, IRP, GST System and Buyer Visibility
The detailed eInvoice workflow connects supplier systems, the Invoice Registration Portal, GST system records and buyer-side visibility. It supports signed JSON response, QR code addition, invoice authenticity verification and GSTR-1 / GSTR-2A update flows.
Supplier System
Prepare or receive invoice JSON, upload eInvoice JSON and receive signed response with IRN and eWay Bill details.
Invoice Registration Portal
Validate invoice data, generate IRN, add QR code and sign invoice JSON before sending response.
GST System
Save invoice details, apply IRN rules and auto-populate invoice details into GST return workflows.
Buyer Verification
Buyer can view invoice details and verify authenticity using QR code or uploaded invoice JSON.
SOLUTION PROVIDED
e-Invoice Generation Integration Process Flow
Built for SAP environments where invoice creation, IRN generation, eWay Bill processing and final GST invoice print updates must move through reliable, auditable and scalable integration logic.
